Madison County, Illinois
| Madison County, Illinois | |
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Madison County Courthouse, Edwardsville
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 Location in the U.S. state of Illinois |
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 Illinois's location in the U.S. |
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| Founded | September 14, 1812 |
| Named for | James Madison |
| Seat | Edwardsville |
| Largest city | Granite City |
| Area | |
| • Total | 741 sq mi (1,919 km2) |
| • Land | 716 sq mi (1,854 km2) |
| • Water | 25 sq mi (65 km2), 3.4% |
| Population (est.) | |
| • (2015) | 266,209 |
| • Density | 376/sq mi (145/km²) |
| Congressional districts | 12th, 13th, 15th |
| Time zone | Central: UTC-6/-5 |
| Website | www |
| Edwardsville, Illinois | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Climate chart () | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| J | F | M | A | M | J | J | A | S | O | N | D |
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2
36
19
|
2.3
42
24
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3.5
52
34
|
4.2
64
45
|
4.2
75
55
|
3.2
84
64
|
3.5
90
70
|
3.2
86
66
|
3.1
79
58
|
2.7
68
46
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3.8
53
35
|
2.9
41
25
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| Average max. and min. temperatures in °F | |||||||||||
| Precipitation totals in inches | |||||||||||
| Source: The Weather Channel | |||||||||||
| Metric conversion | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| J | F | M | A | M | J | J | A | S | O | N | D |
|
51
2
−7
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58
6
−4
|
88
11
1
|
106
18
7
|
108
24
13
|
82
29
18
|
89
32
21
|
81
30
19
|
80
26
14
|
69
20
8
|
95
12
2
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Wikipedia
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